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Core Nutrition

Isotonic Instant Energy & Black STag Pre Workout

Isotonic Instant Energy & Black STag Pre Workout

Regular price Rs. 1,649.00
Regular price Rs. 2,598.00 Sale price Rs. 1,649.00
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Isotonic Instant Energy + Black Stag Pre-Workout is the ultimate combo for athletes who demand stamina, strength, and sharp focus in every session.

Isotonic Instant Energy – Fast-absorbing hydration formula with electrolytes, carbs, and minerals. Recharges energy, prevents dehydration, and boosts endurance during intense activity.

Black Stag Pre-Workout – Hardcore pre-workout blend with powerful stimulants, nitric oxide boosters, and performance enhancers for extreme energy, explosive pumps, and mental focus.


Benefits of this combo:

  • Instant hydration + energy replenishment

  • Explosive workout performance

  • Delays fatigue and boosts stamina

  • Sharp mental focus and muscle pump

  • Ideal for athletes, bodybuilders & sports enthusiasts

💥 Fuel before. Power during. Dominate every rep.

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Core Nutrition Reviews

Because Real Matters – Real People, Real Words

Rahul Sharma
Rahul Sharma
★★★★★
"Core Nutrition's Core Whey Protein has transformed my workouts. The taste is amazing and recovery is faster than ever. Highly recommended!"
Priya Verma
Priya Verma
★★★★☆
"Great taste and excellent mixability. I feel more energetic and focused during workouts. Value for money."
Amit Patel
Amit Patel
★★★★★
"Best protein supplement I've tried so far. Smooth texture and no bloating. Must buy for serious gym-goers!"
Sneha Kapoor
Sneha Kapoor
★★★★☆
"Affordable and effective. Loved the results in just 2 weeks. Core Nutrition never disappoints!"
Vikram Singh
Vikram Singh
★★★★★
"I've gained lean muscle mass thanks to Fusion-7 Protein. Tastes amazing too! Great product overall."
Anjali Mehta
Anjali Mehta
★★★★☆
"Mixes well with both water and milk. No lumps, just smooth goodness. Loving it!"
Rohan Desai
Rohan Desai
★★★★★
"Core Nutrition's products are top-notch. Core Whey is my daily go-to. Strongly recommend it."
Neha Agarwal
Neha Agarwal
★★★★☆
"I love the mango flavor! Feels like a treat after every workout. Helps with fast recovery."
Siddharth Rao
Siddharth Rao
★★★★★
"High-quality protein at a reasonable price. Fast shipping and genuine product. Core Nutrition delivers excellence!"